Import and export of goods General projects: pneumatic and electric tool manufacturing, pneumatic and electric tool sales, metal tool manufacturing, metal product sales, hardware product wholesale, mechanical parts and parts processing, mechanical parts and parts sales, technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion, non-ferrous metal casting, black gold Belongs to casting, gas compression machinery manufacturing, gas compression machinery sales, automobile parts and accessories manufacturing, motorcycle parts manufacturing, first-class medical device production, plastic product manufacturing, plastic product sales, fastener sales, non-residential real estate leasing, housing leasing, property management, parking lot services, professional cleaning, cleaning and disinfection services